Same guards for c sharp
Fixed typo
corrected typos in error messages
some renaming and cleaned up includes
added some first unit tests for the quadratic time mmd
added an illustrativ example for the quadratic time MMD
Merge pull request #895 from karlnapf/master

new unit tests and examples for quadratic time MMD
make use of precomputed kernel when estimating type I and II errors
Merge pull request #896 from karlnapf/master

minor changes to example
+ port factor analysis from tapkee
+ factor analysis class in converter and fa/spe refactoring
fa and spe now share interface for the parameter max. iterations
Merge pull request #894 from iglesias/fa

+ port factor analysis from tapkee
Ported a few more fixes and additions from tapkee

- Added random projection method
- Added missed mean subtraction in projection and out-of-sample projection
- Fixed implementation of isomap and landmark isomap